Output resolution

[spiderdab]

Hi, I'm using your code and it works with very low latency as with its basic configuration. I see you already put latency=0 in the code... I like it!
I've a pair of questions for you:

• Can you suggest how to resize the output window to a desired dimension? (my camera outputs at 1280 x 720, and I would like my window to fill the screen at 1920 x 1080)

• Can you suggest how to check if stream is present and in case display a blank screen?

Thank you for your code, Davide.